Global Patent Index - EP 0371772 A3

EP 0371772 A3 19910703 - MEMORY ACCESSING SWITCH NETWORK

Title (en)

MEMORY ACCESSING SWITCH NETWORK

Publication

EP 0371772 A3 19910703 (EN)

Application

EP 89312386 A 19891129

Priority

US 27799388 A 19881130

Abstract (en)

[origin: EP0371772A2] In the parallel processing computational apparatus disclosed herein, a switching network employing both routing switch elements and concentrator elements efficiently couples bit serial messages from a multiplicity of processors to a multiplicity of memory modules. The apparatus operates in a highly synchronous mode in which all processors issue memory requests only at essentially the same predetermined time within a frame interval encompassing a predetermined substantial number of clock periods. The routing switch elements and concentrator elements incorporate means for comparing the addresses of requests which may be blocked at any element with requests which get through and, if the addresses are the same, returning the memory response to all processors seeking the same memory location.

IPC 1-7

G06F 15/16; G06F 13/16

IPC 8 full level

G06F 12/06 (2006.01); G06F 13/18 (2006.01); G06F 15/167 (2006.01); G06F 15/173 (2006.01)

CPC (source: EP US)

G06F 15/17393 (2013.01 - EP US)

Citation (search report)

  • [A] WO 8700374 A1 19870115 - AMERICAN TELEPHONE & TELEGRAPH [US]
  • [A] US 4598400 A 19860701 - HILLIS W DANIEL [US]
  • [A] Proceedings of the 1986 international conference on parallel processing 19 August 1986, University_Park, US pages 721 - 728; T.H.Cormen: "A hyperconcentrator switch for routing bitserial messages"
  • [A] MICROPROCESSING AND MICROPROGRAMMING. vol. 24, no. 1988, 01 August 1988, AMSTERDAM NL pages 511 - 518; V.C.Barbosa: "Specification of a communication virtual processor for parallel processing system"
  • [A] COMPUTER. vol. 20, no. 6, June 1987, LONG BEACH US pages 30 - 40; V.P.Kumar: "Augmented shuffle-exchange multistage interconnection networks"

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0371772 A2 19900606; EP 0371772 A3 19910703; EP 0371772 B1 19960131; DE 68925571 D1 19960314; DE 68925571 T2 19960801; JP 2781623 B2 19980730; JP H02263260 A 19901026; US 5041971 A 19910820

DOCDB simple family (application)

EP 89312386 A 19891129; DE 68925571 T 19891129; JP 31221289 A 19891130; US 27799388 A 19881130